In the standard form, the number 7 here should be an exponent not a sub text.
Answer: 5.13 x 10^(7).
Done!
Is that the whole problem?
Because there is a square at the bottom of the figure, we can say that the angle is equal to 90 degrees (x+22). Thus, the equation would be
x+22 = 90
x = 68
The value of "x" is then equal to 68
